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mvirnn sTATns PATENT ormoni.

PORTER SETVARD, OF CHASEVILLE, NEW YORK.

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Specication of `Letters Patent No. 32,006, dated April 9, 1861.

T o all fwhom it may concern.'

Be it known that I, PORTER SEWARD, of Chaseville, in the county ofOtsego and State of New York, have` invented a new and ImprovedWagon-Brake; and I do hereby declare that the following is a full,clear, and exact description thereof, reference being had to theaccompanying drawings, in which- Figure 1. is a longitudinal sectionthrough a wagon, with my improved brake applied to it, taken in thevertical plane indicated by the red line in Fig. 2. Fig. 2. is a topview of a wagon having m f improved brake applied toit. Fig. 3. is aview representing the position of one of the rubbers or brake blockswhen the wagon is backed and the brakes are applied.

Similar letters of reference indicate corresponding parts in the threefigures.

To enable those skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

A, is the front axle, B, the hind axle, and C, the reach which connectsthem together; D, D, are the front and rear holsters on which the wagonbody (not represented in the drawings) is placed; E, E, are the houndswhich are attached to the front axle, and a, a, a, a, are the wagonwheels on which the several parts Aare mounted. These parts justdescribed are in comm'on with an ordinary wagon and to this wagon Iapply my improved automatic brake arrangement, in the following manner.

F, is the pole of the wagon which has two curved arms b, secured to itsrear end. These arms b, b,- are placed between the front ends of houndsE, E, and the ends of arms b, are attached to and have their bearings incranks c, c, of a transverse crank bar G, which bar has its bearings inthe ends of hounds E, E, which project from the outsideof axle-tree A.

The cap pieces cl, cl, which are secured to the front ends of hounds E,E, over the ends inside edges of the hounds and prevent the of the crankbar G, project slightly over the cranks c, c, from being thrown above ahorizontal plane, these cranks c, c, will thus be kept always in aposition to be properly operated upon by the pole F.

In the middle of the crank bar G, between its two cranks c, c, is keyeda grooved pulley wheel e, which rocks with the crank bar G; and f, is arope or chain attached to this under the axle passing over it, down, andtree A. This rope or chain f, extends back a suitable distance andconnects with the front end of a rod H, which is continued back to avertical lever I, and attached to the lower end of this lever I. Thisrod I-I, passes along under the reachbar C, and through a loop It, whichprojects down from this reach. A turn buckle L, is applied to rod I-I,for the purpose of lengthening or shortening it at pleasure.

The lever I, projects up through a slot near the rear end of reach barO, and has its fulcrum in this reach. This lever I, may be provided witho-ne or two extra holes for attaching the end of rod I-I, closer to thefulcrum of said lever.

The upper end of lever I, projects above the top of reach C, and isconnected to the middle of brake bar J, by a short link z'. Thishorizontal transverse bar J rests on Lthe reach bar C, and on two curvedbrace arms y', j, which form a ends of this brake bar project out oneach side of the reach O, as far as the inside surfaces of the rearwheels a, a, as represented in Fig. 2, and in front of This bar J, isheld down on the reach by the metal straps le, r, which allow the bar J,to move bodily in a direction with the length of the wagon.

K, is a semi elliptic spring which is secured at the middle of itslength to the middle of the brake bar J, and to the back edge of thisbar. The ends of spring K bear against the inside surfaces of the rearierpendicular portions of straps 7c, It', and force the bar forward torelieve the rubbers from the wheels.

g, g, are two stiff steel rods which are secured at their inner ends bystaples, or in any suitable manner to the top of brake bar J. The outerends of these rods g, g, are secured to the rear ends of rubber blocksn, n, the front ends of which blocks are pivoted to the ends of thebrake bar; J, at p, 79, Figs. 2 and 3. The blocks n, n, will thus beallowed to rock on the pivots p, p, and it will be seen that when therear ends of the rubbers are brought into Contact with the peripheriesof the wheels a, a, and the wagon is backed while they thus bear uponthe wheels, the steel rods g, g, will be twisted and allow the,ends ofthe rubbers to rise and release themselves from the wheels. As

pulley e, and

- soon as the backing ceases the rods g, g, will these wheels.

part of the reach; and the improved brake,

force thexrubbers or. rubber blocks afin, back "totheir 'originalposition. The rear end of these blocks n, n, are covered with soleleather in the usual Vmanner to prevent the blocks from wearing away.

The operation of applying the brakes is as follows: The horses arehitched to the pole F, in the usual manner, and when the wagon is drawnalong the crank 0, c, together with all the parts which makeup my areheld in the positions represented in Figs. 1 and 2, in black lines. Whenit is desired to apply the brakes to the wheels on a level road thehorses are checked and the pole is consequently moved backward. Thisoperation of the pole forces down the cranks c, c, turns the crank shaftGr, and with it the pulley wheel e, in the direction indicated by thearrows in Figs. l andQ, thus causing the pulley e, to wind up the chainf,fand draw the rod I-I,

together with the lower end of lever I, forward. The upper end of leverI, is con- .sequently moved backward with some force and this latter endof the lever I, being connected to the transverse brake bar J, this ,barJ, willbe moved back and the rear ends .of the blocks u, "u, will be`drawn upv hard from the wheels.

against 4the 'peripheries :of the rear wheels a,"a. In v'going downagrade,`thehorses being properly checked, the brakes will bel applied inthe same manner as just described. IVhen the horses are started and thepole F, drawn forward the spring K, will throw the bar J, forward andrelease the brakes In backing the wagon under a very heavy load theblocks n, n, will be thrown up by the friction of the wheels upon theirsurfaces, as herein above explained, and thus released from the wheelsin such a manner, as not to prevent the wagon from being moved readily.

Having thus described my invention, what I claim as lnew and desire tosecure by Letters Patent, is;

The arrangement of the crank G, pulley e, chain f, and adjustable vrodH, `with the draft pole F, lever I, spring K, brake bars J, J, rods g,g, andpivoted rubbing blocks my, a, all in the manner and for thepurposes herein shown and described.

PORTER SEWAPD.

Witnesses J oHN B. SEWARD, S. H. GURNEY.

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